Re: [PATCH][next] spi: SPISG: Fix less than zero comparison on a u32 variable

From: Xianwei Zhao
Date: Sun Jul 27 2025 - 22:13:39 EST



Reviewed-by: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
On 2025/7/26 01:17, Colin Ian King wrote:
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The check for ns < 0 is always false because variable ns is a u32 which
is not a signed type. Fix this by making ns a s32 type.

Fixes: cef9991e04ae ("spi: Add Amlogic SPISG driver")
Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>
---
drivers/spi/spi-amlogic-spisg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-amlogic-spisg.c b/drivers/spi/spi-amlogic-spisg.c
index 48a5325b4db7..2ab8bdf2a676 100644
--- a/drivers/spi/spi-amlogic-spisg.c
+++ b/drivers/spi/spi-amlogic-spisg.c
@@ -163,7 +163,7 @@ struct spisg_device {

static int spi_delay_to_sclk(u32 slck_speed_hz, struct spi_delay *delay)
{
- u32 ns;
+ s32 ns;

if (!delay)
return 0;
--
2.50.0